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Immediate fixed rehabilitation of the edentulous maxilla: a prospective clinical and radiological study after 3 years of loading.

Abstract：

PURPOSE:The aim of this study was to prospectively evaluate the clinical and radiographic outcomes of immediate full-arch fixed maxillary prosthesis supported by two axial and four tilted implants after 3 years of loading. MATERIALS AND METHODS:Thirty-two patients with atrophic maxilla were consecutively enrolled and treated. Each patient received a fixed full-arch maxillary rehabilitation supported by four tilted implants that engaged the posterior and the anterior sinus walls and two axial anterior implants. A total of 192 implants (30 Brånemark System MK IV and 162 NobelSpeedy Groovy, Nobel Biocare AB, Göteborg, Sweden) were inserted and immediately loaded. The definitive restorations were placed 6 months later, and follow-up visits were scheduled every 6 months. During follow-ups, marginal bone loss (MBL), plaque and bleeding scores, and patient's satisfaction were recorded. RESULTS:All patients reached at least 3-year follow-up examination (range 36-78, average 55.53 months). Two tilted implants failed before delivering the definitive restoration, resulting in a cumulative survival rate of 98.96%. All final prostheses were stable and functional, resulting in a cumulative survival and success rate of 100%. At the 3-year follow-up there was no significant difference in MBL between axial (1.55 ± 0.31 mm) and tilted implants (1.46 ± 0.19 mm) (p = .05). Plaque and bleeding scores decreased over time, while patient's satisfaction in both aesthetics and function increased. CONCLUSIONS:Implants placement with this configuration could be considered a predictable and cost- and time-effective alternative approach for the immediate restoration of the edentulous maxilla, avoiding bone grafting procedures, even with a medium-term follow-up.

journal_name

Clin Implant Dent Relat Res

journal_title

Clinical implant dentistry and related research

authors

Agliardi EL,Pozzi A,Stappert CF,Benzi R,Romeo D,Gherlone E

doi

10.1111/j.1708-8208.2012.00482.x

subject

Has Abstract

pub_date

2014-04-01 00:00:00

pages

292-302

issue

eissn

1523-0899

issn

1708-8208

journal_volume

pub_type

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Immediate fixed rehabilitation of the edentulous maxilla: a prospective clinical and radiological study after 3 years of loading.